Title

Midterm Results of a Femoral Stem With a Modular Neck Design: Clinical Outcomes and Metal Ion Analysis

Publication Date

2014

Journal Title

J Arthroplasty

Abstract

Modular neck femoral stems have a higher-than-anticipated rate of failure in registry results, but large single-center cohort studies are lacking. This is a retrospective cohort of 152 hips implanted with a single titanium stem with a modular titanium neck, presenting clinical, radiographic, and metal ion results at a mean 4.5-year follow-up. Five hips were revised during the study period, for an overall Kaplan-Meier survival of 0.894 at 8 years. There was one modular neck fracture (0.66%), but others demonstrated corrosion or adverse tissue reaction. Serum metal levels demonstrated wide variability. Despite good clinical results in the majority of patients, we confirmed an increased rate of femoral revision at mid-term follow-up, and therefore urge caution in the use of this particular stem design. (C) 2014 Elsevier Inc. All rights reserved.

Volume Number

29

Issue Number

9

Pages

1768-1773

Document Type

Article

EPub Date

2014/06/05

Status

Northwell Researcher

Facility

Northwell Health

Primary Department

Orthopedic Surgery

PMID

24895065

DOI

10.1016/j.arth.2014.04.039